Jar opening device



FIG. 1 is a perspective view of a jar opening device taken from the bottom, showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof taken from the left side of FIG. 2;

FIG. 5 is a side view taken from the right side of FIG. 2;

FIG. 6 is a front end view thereof; and,

FIG. 7 is a rear end view thereof. 

The ornamental design for a jar opening device, as shown and described. 